[Perilymphatic fistula occurring spontaneously after cholesteatoma surgery].

This case report describes a 53-year-old woman, who presented with symptoms of a perilymphatic fistula (PLF), developed 12 years after most recent surgery. The diagnosis was confirmed by a combination of clinical observations, temporal computed tomography, audiometry and video head impulse test. PLF normally occurs after traumatic lesions or substantial infections of the middle ear, often including cholesteatomas, and should be suspected when patients with the relevant clinical history present with sudden onset of unilateral hearing loss, dizziness, tinnitus and aural fullness.